Doorlock with automatic interlocking bolt



- June 30,1 1925. v

' c. w. LANPHERE DOORLOCK WITH AUTOMATIC` INTERLOGKING BOLT Y Filed May 25, 1922 2 Sheets- Sheet 1 Y V. i

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lll/l `'une 30, 1925. 1,543,929

- c. w. LANPHERE DOORLOCK WITH-AU-TOMATIC INTERLOCKING BOLT Filed may 25, 1922 2 sheets-sheer 2 Patented dune 3i), i925.

Para

CLIVE W. LANPHERE, F BROOKLYN, NEW YORK.

noonLooir WITH Aniversario INTERLGCKING BOLT.

Application. filed May 25,

To all who/ni t may concern: Y

Be it known that I, Crivn idf. Laisrrmnn, a `citizen of the United States, residing at Brooklyn, county of l'ings, and State of New York, have invented certain new and useful improvements in Doorlocks with Automatic Interlocking Bolts, fully described and represented vin the i'ollowing specification, and the accompanying drawings, forming a part oi the same.

rFhis invention relates to that class ot door-locks in which a bolt :troni a lock-casing operates to interlock `with a guard upon a door, and the objects of the invention are:

First, to torni such interlocking engagement with iiat faces 'upon the lock-casing and the guard7 so as to secure a very conipact and neat appearance of the' device;

Second, to obtain an automatic operation of an interlocking bolt kwhen the lock is pressed toward the guard. by the closing of the door. Such automatic locking `of the door Vis secured whenever it is closed and prevents its reopening except by the use of akey or knob; v

Third, to make .the guard adjustable in relation to the lock-casing, to compensate for variations in their relative positions whieh arise from shrinkage in the woodwork or other causes; and,

Fourth, to reinforce the connection of the guard to the door-lock, so -as to reduce the chanceof prying the guardv away from the lock by a jimmy A curved bolt is Vused rather than a straightone, because it perinitsthe interlocking employed in the .present invention, which operates to support the boltat both ends within the vlock-casing and also at several points within the keeper or guard. -4

These objects are all promoted by using a curved bolt which is proportioned to niove out oi' the lock-case into a chamber upon a guard,` through one aperture, and from another aperture to pass out of the said chamber and its end then ehgage an aperture in the lock-face. `By this construction the. bolt is wholly concealed in the casing, when unlocked, and is strongly engaged with the guard when the door is closed.

The construction will be understood by reference to the annexed drawing, in which Fis-l. there e 10.91 with @ne side removed.

in the: casing, and Fig.

1922. Serial No. 563,625.

GFQE..

and the bolt retracted within the lock-case;

n.. n 2 shows a lock with one side removed,

the adjacent guart case through the guard; Fig. e

j in section, and the ,tongue ot the bolt projected from the lockshows the face of the lock-case; Fig. 4ia side view ci the entire lock-bolt; Fig. 5 an edge view of the saine; Fig. 6 s-hows a plan ot' the hired portionv of the guard; Fig. 7 shows the topplate of the lmovable portion ot' the guard; Fig.` 8 shows the edge oi the door to which the lock-case is attached and the adjacent door-jamb with the guard attached thereto, the guard being in cross section at'the iniddle of its length; Fig. 8"l shows a view of the fixed portion oii' the guard'viewed from the right-hand side of the guard shown in Fig. 8; Fig. 9 shows a view of the adjustable portion of the guard viewed vfrom the right` hand side ci' the guard in Fig. 8; Fig. 10 is `a cross secticm of the locken line lO-lO in Fig. 2; Fig. ll shows the lockcase with the lid and all the movable parts removed; Fig. l2 is a longitudinal section of the lock-case taken on line 12*12 in Fig. 2; Fig. 13 shows the face Vof the lock-case with the tongue of the bolt partially projected7 and the beveled head of the detacher retracted within the tace; and Fig. la shows an alternative means of securing the guard adjustably to the door-j amb.

The'terin guard where usedherein covers any form of keeper or lock-plate adaptedI to cooperate with the curved locking-bolt in the manner described herein.

In Figs. l and 2, the bolt is shown in two positions,

Fig. l showing the bolt retracted 2 showing the bolt projected and engaged with the guard, as

.when the doorA 38 is closed and locked.

The bolt is shown detached in Fig. 4l, having a body 20 with a tongue 2l extended from its forward end, and a stem 22 eX- tended from its rear end, to receive a tubular spiral spring 23.

`A iaceway for the body of the bolt is formed in the casingby ribs 2a upon the side of the casing 19.,` 'The tongue is curved, as well as the body and stein, 'lior a purpose that will be described, and an outlet aperture is Jformed in the face-plate 26 through which the tongue entended to engage the guard.Y

A the bolt-body which with a socket 52 (see At the inner end of the raceway a seat or stop 32 for the spring 23 is provided, and

the stem 22 passes through and extends beyond that seat when the bolt is retracted and the spring compressed.

Automatic control of bolt.

A detent 33 is connected to a detacher 35 and fits normally into a notch34 in the edge of the body 20, to hold the bolt within the casing 19 while the door is open.V At such time there is therefore no projection from the flat faces of the lock-case and the guard, excepting the outer end 36 of the detacher fi ture'25) intoengagement with the guard.

When thus engaged, the tongue' embraces the metal between the apertures ofV the guard, and binds the guard rrnly to the loclecase. (See Fig. 2.)

Guard construction.

The guard consists essentially of a box or chamber having a foot Yfor attachment to the door-frame or, jarnb 38and a faceplate 28 having two apertures 42 and 43 through which the tongue passes and its forward end then received in the inlet-aperture 3l on the face-plate ,26. of the lockcase. Fig. 2 exhibitsV the parts thus arranged and shows the strong connection ot' the guard to the lock-casing. Y

The apertures in thefguard correspond with those in the lock-face 26, and the tongue 2l passes through all four apertures when the door is closed. To strengthen the metal between the apertures in the guardthe said metal or postl39 Vmay be thickened to a convex shape on its inner side, to t the concave inner side of the tongue, so as to greatly strengthen the Connection of those parts.

Then the door is open, the parts of the lock occupy the positions shown in Fig. l but are automatically shifted into their operative positions by the contact of the detacher 36 with the lock-plate 28 upon the guard when ,the doorris closed. To open the door thereafter, a lockingebarrel is provided in which `a key may be inserted. Such barrel has an ear 5l projected toward body has a lug 53 to engage the saine, andfretract the tongue of the bolt into the casing, by turning the key.

The lug and ear are provided respectively Fig. l0) and a stud against the guide-ribs 24.

Uompensatz'o'n, for shrinkage.

In case the woodwork shrinks, on which `the lockecase or guard is secured, the guard would be so displaced that it would not admit the tongue to its apertures; and means is therefore needed to compensate for such shrinkage, or displacement from other causes. l

In the present invention such means consists of an adjustable joint between the face and the foot ofthe guard.

The construction may be varied consider ably, as shown in the drawings annexed, in which Figs. 7, 8 and 9 show one construction, and Fig. 14 another.

The constructions all showy the guard made in two pieces, one secured to the woodwork and the other fastened thereto by adjustable means so as yto set it nearer to the lock-case when required.

`The simplest form of construction is shown in Fig. 14 wherean angle-piece 4l is shown secured upon the corner of the door-jamb 55 and ribbed upon its outer side to lit ribs on the foot 40, upon which is Vformed a hollow box or chamber with lock- -plate 50 upon its front side provided with apertures to permit the passage ofthe bolttongue through the guard, as shown inFigs. 2 and 13.

There there is any displacement of the lock or door, it is evident that the lockplatek of this guard canA be moved toward the :tace of the lock upon the door, and the initial condition thus be renewed at any time. The foot-plate is slotted to receive ,the screws v512 which hold the guard in place. jThe adjustment is effected by loos- 'A ening the screwsvlz, and tightening them again after adjusting the guard at a suit able distance from the lock-case,

Figs. 7, 8 and 9 show a construction in which a flat lock-plate 38 is `used which is attached to the jamb adjacent the edge of the door, and has flanges 43 and 50 adapted to t within an opensided box formed upon thejoot-plate 40. This foot-plate is at tached to the front side of the door-jarnb and the adjustable lock-plate 28 is fastened to the edge of the jamb adjacent to the opposite edge of the door. The face of this lock-plate is shown in Fig. 9,

The space between the foot-piece and the lock-plate is made large enough :for the passage of the bolt-tongue behind the post V39 throughapertures 42 and 43 formed iu the face of this lock-plate, as shown in Figs. 2 and 9.

vThe lock-plate 28 has its inner portion ICO fitted to lie upon the iat inner tace of the door-jamb, and outside of such jamb is formed with longitudinal flanges, and endtianges l which forni a boX upon the lock-plate upon its rear side. This box, as shown in Fig. 2, is fitted within a sirnilar box formed on the foot-plate, thus closing the joint between the parts in all their adjustments.

A flange M is projected from the footpiece opposite the outer side of the lockplate, and a corresponding flange 43 is projected from the top of the -lockplate 28 andv fitted beneath the flange 44 of the foot to which it is secured by screws 45.

A rowof holes 46is shown in the flange 44 in 6, and three groups of tap-holesY k41' are shown in the ilange 43 (see Fig.

7) to operate with thev screws 45 in the tlange 44 at different distances from the apertured face of the lo'cl-plate 28.

VlVith this construction the foot-piece ot the guard is secured permanently upon the door-jamb, and the inner edge of the plate 28 is recessed into the inner side ofV` the doorj amb to be `flush therewith when the lock and guard are iii-st applied. Three screws 45 are at such time fitted through the holes 47 in the three groups oi Fig. 7 which are nearest to the face oii this loch-plate 28. The door 41 1s shown in Fig. 8 shrunk `away from the adjacent tace of the jamb a traction of an' inch, and the lock-plate 28 is shown moved outward from the foot-piece a corresponding amount, to bring the loch-plate 28 close to the lock-case asat iirst.

To secure" the leciti-plate to the foot-piece in this new position,the screws would be applied to a different series of holes inthe iianges 43 and 44. At the same time, packing-plates 38 are inserted between the inner edge oi the lock-plate 2S and the side of the j amb, as shown in Fig. 8. The lock-plate of guard is thus secured riOidly as at iirst, i n moved into a new positionby the means described. j i,

The lochplate 28 is formed as shown in liig. 2, with cheek. 50 at its ends, embracing *s 5l projected from theends of the plate 28, such construction closing the ends ot the guard in any adjusted position oit the loch-plate. f

` eclring-plates may be employed of any necessary thickness, and it is evident that the use oi' such an adjustable lock-plate and jjiacllzingp-late permits the required adjustiinent without making any new screw-holes or loosening the grip of the foot-piece 40 upon `the door-j amb. This is equally true of the constructions shown in 8 and Fig. i4.

Reference to 2 shows that the bolt tongue 2l is interloclled with theguard vand with the loclecasing, and any force applied to strain the door from the door-jamb will be etlectually resisted, as the bolt can only he released by longitudinal movement, and any strain to pry the door and the guard apart is transverse to the line of the bolt and has no effect whateverl in pushing it lengthwise, which alone could release the inter-locked parts.

To assure the normal in'terloclringof the bolt with the guard, one edge of the tongue 2l i3) is tapered at 2l to permit its entrance into the aperture 42 (Fig. 9) should the door not be fully closed when the bolt is projected, and to safeguard the movement ot the bolt the notch 84 shown in Fig. l is made of suitable depth so that the detent will not be wholly withdrawn until the door is practically closed.

n laving thus set iforth the nature of the invention what is claimed herein is:

l. A door-lock having a bolt curved on 'an are of a circle, a casing having means `for projectingthe bolt from its tace and means for retracting said bolt, a guard formed' in two parts, one having a tootl to secure upon the door-ja-Inb and the other having a flange attac-hed to the door-jainb and a plane face having apertures in the toot-piece, the foot-piece and the flange having overlapping parts provided with means for adjustment in different positions, and the packing-plates adapted to tit between the flange and' the door-jamb when the said flange is adjust-ed as desired.

Q. A door-lock having a bolt curved on an arc of a circle, a casingV having means for projecting the bolt from its face, a guard 'formedin two parts, one having a toot to secure upon the door-jamb and the other having a flange attached to the door-jamb and a plane tace having apertures corresponding to the apertures in the foot-piece, the foot-piece andv the iiange having overlapping parts and said parsA provided with three series of screw-holes adapted to hold the flange upon the feet in several adjusted positions, and the packing-plates adapted to iit between the flange and the door-jamb when the said flange is adjusted as desired.

3. A door-lock having a circular-ly curved raceway therein, a similarly curved bolt having the body lit-ted to the said raceway, a tongue upon the body adapted to project from the lock-case and engage a suithlo guard, a spring to project the tongue normally from the casing, a lock-barrel within the casing, an ear projected irom the boltbody toward the loch-barrel, and a lug projected from the lock-barrel to retract the tongue into the casing when desired, and the lug and ear having respectively a socketand a stud upon their opposed faces to maintain theirrelation to one another when in operation. l

4. A. door-lock having a casing with a circularly curved raceway therein, a similarly curved bolt having a body iitted movably to the raceway and provided `with a notch, a tongue extended from the forward end of the body and a stem extended from its rear end, a spiral spi'ing applied to the said stem and arranged to project the tongue normally from the casing, a detent to engage the notch, to oppose .the locking movement of the tongue, means connected 'with the detent and operated automaticallyupon the closing of the door 'to release the bolt and project the tongue to engage a suitable guard.

5. A Vdoor-lock having a casing with a circular vraceway therein, a similarly curved bolt fitted to the curved raceway and provided with a notch, a spring to project one end of the bolt from the casing', a guard to interlock with the said bolt, a Vdetent to engage the notch in the bolt, a detacher connected directly with the detent and vhaving its end projected from the casing When the detent is engaged, and pressed into the casing by the guard when the door is closed, and thus Operating to Withdraw the detent and cause the automatic release of the bolt, to engage the guard.

6. A lock having an arc-shaped bolt, a guideway for said bolt, means 'for project'- ing the bolt, a guard to interlock with the bolt, a detent to engage the bolt to hold the boltretracted, such detent being directly connected to a detacher to disengage the detent from the bolt, and a lock-barrel having means to retract the bolt. V

A lock having an arc-shaped bolt, guides for the bolt, means for projecting the bolt, a guard to interlock with the bolt, a detent to engage the bolt to hold the bolt retracted, a detacher to disengage the detentfrom the bolt, and a lock-barrel having meansto retract the bolt. Y

8. A lock having an arc-shaped bolt, said bolt having a stem projected from its rear end, and a spring adjusted to said stem.

9. A lock having an arc-shaped bolt composed of a tongue, a stem and an intermediate body portion and means for engaging saidintermediate body portion to operate said bolt. i

10. A lock having an arc-shaped bolt comprising an anterior tongue adapted to be projected from the lock, a spring behind said tongue tor projecting said bolt and means for engaging said bolt to operate the same.

11. A lock having an arc-shaped bolt and a raceway, said bolt comprising a tongue,

a stem and an intermediate body portion,

the body-portion being iitted to said raceway, and means for engaging said intermediate bodyportion vto operate said bolt.

12. A lock having an arc-shaped bolt comprising a tongue, an'intermediate body pormeans for engaging said intermediate body portionto operate said bolt. i*

13. A lock having an arc-shaped boltrcoinprising ;a body portion, a rearwardly projecting stem, a forwardly projecting tongue, said tongue being of greater width than thickness and means for engaging said body portion to operate said bolt. j

14;. The combination Vof a guard having spaced apart openings in its tace, a lock casing having an arcuate bolt adapted to be automatically projected from said casing to .engage said openings, releaser means carried by said casing andadapted to engage the guard between said openings to autokmatically release said bolt, and means for projecting said bolt.

15. A lock comprising a casing, an arcuate bolt adapted to be automatically projected therefrom, means Within the arc describedk by said bolt for automatically releasing said bolt When said releaser means engages a guard, said releaser means including means within said casing for holding the bolt retracted, and means for projecting said bolt when released.

lo. A lock having a casing provided with an arc-shaped bolt, an arc-shaped spring litted to project the bolt from the casing, and means toretract the bolt and means to retain it in the casing.

17. A lock having a casing provided with an arc-shaped bolt, an arc-shaped spring fitted to project the bolt from the casing and operating in the path of the bolt, and

means to retract the bolt and means to rctain ,it in the casing. i A

Y18. A lock having a bolt of arc-shape, means to retract vthe bolt, a detent to engage the bolt, a releaser to disengage the detent, a guard to engage the releaser and the bolt to cause `the detent to engage said bolt, and means to project said releaser.

19. A lock having an arc-shaped bolt, said bolthaving an arc-shaped spring adjusted toit, and means engaging said bolt for operating the saine.

20. A lock having an arc-shaped bolt, and a detent to engage theV bolt to hold the bolt retracted.

21. A lock haring a casing, an arc-shaped bolt mounted on said casing', and a tumbler, means for interlocking the bolt and tumbler, and means orunlocking said bolt and tumbler.

22. A lock having an arc-shaped bolt'and means directly engaging said bolt to hold the same retracted.

23. In a lock, a lock casing, a locking bolt mounted in said casing, a keeper comprising a portion adjustable toward and from said lock casing, means for adjusting said portion, and means for securely locking. said portion n its adjusted position.

24. A lock comprising an arc-shaped spring-projected boltand a slidable detent 'for holding the` bolt retracted.

25. A lock comprising a casing, an arcuate bolt, an arcuate spring to project said bolt, said bolt When projected engaging said casing at a plurality of points.

26. A loci; comprising a casing, a bolt movable in an arcuate path, a stem assoeiated with said gbolt, a resilient member compressible by a movementof said bolt in one direction, and means for automatically releasing said member to move the bolt in another direction.

27. In a lock, the combination oi a casing, an arcuate bolt, a helical spring, a.

stem associated Witli said bolt and movable Within said spring, means for holding said spring compressed, and means for automatically releasing said spring to move said 1nolt.

28. In a lock, the combination ot' a bolt comprising a tongue and a stem, a helical spring mounted upon said stem, means for moving said stem Within said spring to accumulate energy, and means for releasing said energy to actuate said bolt.

29. A lock comprising a casing, an arcn bolt adapted to be projected from said casing, said bolt when projected engaging the casing at a plurality of points, and resilient means directly cooperating with said bolt for projecting the same.

1n testimony whereof I have hereunto setmy hand.

CLVE `W. LANPHERE.

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